From: California, USA
Several similiar games in the past started with this same problem; not able to easily evaluate techs in a trade. The games would then latr get an update to add mouse over or window descriptions on the techs in diplomacy.
It seems that by now game designers should have ths down as standard feature on release versions.
Also, several other seemiingly essential features added in past games that are still missing or later added to new games in updates.
Wish list:population centers beyond planetary(http://en.wikipedia.org/wiki/The_Culture):Ships,Ring Orbitals,Sphere Orbitals,Ringworlds,Sphereworlds;ability to create & destroy planets,population centers,stars;AI competently using all advances & features.